From: Noa Osherovich <noaos@mellanox.com>
Date: Mon, 12 Sep 2016 16:16:23 +0000 (+0300)
Subject: IB/mlx5: Enable MAD_IFC commands for IB ports only
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7fae6655a0c897875bd34501ec092232b526d3e4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

IB/mlx5: Enable MAD_IFC commands for IB ports only

MAD_IFC command is supported only for physical functions (PF)
and when physical port is IB. The proposed fix enforces it.

Fixes: d603c809ef91 ("IB/mlx5: Fix decision on using MAD_IFC")
Reported-by: David Chang <dchang@suse.com>
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 8150ea372c53..0480b643fb9c 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -288,7 +288,9 @@ __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num,
 
 static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev)
 {
-	return !MLX5_CAP_GEN(dev->mdev, ib_virt);
+	if (MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_IB)
+		return !MLX5_CAP_GEN(dev->mdev, ib_virt);
+	return 0;
 }
 
 enum {